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Full text of "Text Book Of Mechanical Engineering"

Steam Cylinder in Loam.

mould being thus forced upward, where it escapes at holes there
provided, termed risers. The mouth of the pouring gate should
of course be a little higher than the top of the cylinder. Venting
is rarely necessary in loam moulding, except for such pieces as the
long S cores. Piece R, Fig. 34, is left for the purpose of receiving

TOP   Of P/T

THE   A7OCSL.D

BOTTOM    Of~  PIT

FJUQ. 34. SZecurv CyMruter: